Patents Assigned to Quaker State Investment Corporation
  • Foldable vehicle sunshade
    Patent number: 6289968
    Abstract: A foldable vehicle sunshade has a core of flexible, resilient material, with a plurality of folds defined by lines of stitching that extend from one edge of the sunshade to another edge of the sunshade.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: September 18, 2001
    Assignee: Quaker State Investment Corporation
    Inventors: Stuart Karten, Paul Kirley, Eric Olson
  • Collapsible vehicle sun shade
    Patent number: 6135191
    Abstract: A collapsible vehicle sun shade assembly is described that has a sheet of flexible fabric material, with at least one non-central hub. Hingedly attached to the non-central hub are at least four support members. The at least four support members are secured to positions along the outer edge of the flexible fabric sheet.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: October 24, 2000
    Assignee: Quaker State Investment Corporation
    Inventors: Edward David Mitchell, Roger Kim, John Charles Cook, Scott Paul McManigal
  • Vehicle sun shades
    Patent number: 6095230
    Abstract: A collapsible vehicle sun shade is presented that has a sheet of flexible material, with a central hub having a plurality of support members flexibly hinged to the hub and secured to positions along the outer periphery of the sheet.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: August 1, 2000
    Assignee: Quaker State Investment Corporation
    Inventors: Edward David Mitchell, Roger Kim, John Charles Cook, Scott Paul McManigal
  • Steering wheel cover
    Patent number: D436068
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: January 9, 2001
    Assignee: Quaker State Investment Corporation
    Inventor: Laurie J. Stevens
  • Steering wheel cover
    Patent number: D447455
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: September 4, 2001
    Assignee: Quaker State Investment Corporation
    Inventor: Laurie J. Stevens
  • Rooftop cargo bag
    Patent number: D410224
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: May 25, 1999
    Assignee: Quaker State Investment Corporation
    Inventor: Richard Landy
  • Combined telephone and pager carrier
    Patent number: D414925
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: October 12, 1999
    Assignee: Quaker State Investment Corporation
    Inventor: Joe S. Holland
  • Steering wheel cover
    Patent number: D429671
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: August 22, 2000
    Assignee: Quaker State Investment Corporation
    Inventor: Laurie J. Stevens